Auth0 vs WorkOS

The honest comparison

Auth0 and WorkOS are often shortlisted together by B2B SaaS teams, but they solve different scopes. Auth0 is a complete, developer-first identity platform covering authentication, MFA, passwordless, and both B2C and B2B (organizations, enterprise connections). WorkOS is narrower by design: enterprise-readiness building blocks (SSO, SCIM, audit logs, admin portal) meant to bolt onto an app that already handles its own login.

When Auth0 wins

• You want one platform to own authentication end to end, not just the enterprise edges
• Breadth of protocols, SDKs, and extensibility (Actions) drives the decision
• You need both consumer (B2C) and B2B identity from the same product
• Mindshare, ecosystem, and a long track record matter to your buyers

When WorkOS wins

• You already have authentication and only need enterprise SSO and SCIM
• You prefer lean, composable APIs and want to avoid a full platform migration
• SSO economics matter: paying per enterprise connection beats per-user tiers at high user counts
• The driver is a specific enterprise deal requiring SAML and directory sync now

Pricing

Auth0 uses per-monthly-active-user tiers that escalate, with B2B and enterprise features in higher plans. WorkOS charges per enterprise connection from the first connection on a published volume ladder, with no free connection allowance, and prices its AuthKit login layer per monthly active user with the first million free (WorkOS pricing), which is cheaper than per-user tiers when enterprise SSO is the only need and your user count is high. Model both with the TCO calculator.

Verdict

Choose Auth0 when you want a full identity platform and the broadest developer experience. Choose WorkOS when authentication is already solved and you need to add enterprise readiness cheaply and surgically. See WorkOS vs Frontegg and Okta vs Auth0 for adjacent decisions.